Move dependencies in 'external' directory and pdate git submodules

external/Catch2/CMake/llvm-cov-wrapper

@@ -0,0 +1,56 @@
+#!/bin/sh
+
+# This file is part of CMake-codecov.
+#
+# Copyright (c)
+#   2015-2017 RWTH Aachen University, Federal Republic of Germany
+#
+# See the LICENSE file in the package base directory for details
+#
+# Written by Alexander Haase, alexander.haase@rwth-aachen.de
+#
+
+if [ -z "$LLVM_COV_BIN" ]
+then
+	echo "LLVM_COV_BIN not set!" >& 2
+	exit 1
+fi
+
+
+# Get LLVM version to find out.
+LLVM_VERSION=$($LLVM_COV_BIN -version | grep -i "LLVM version" \
+	| sed "s/^\([A-Za-z ]*\)\([0-9]\).\([0-9]\).*$/\2.\3/g")
+
+if [ "$1" = "-v" ]
+then
+	echo "llvm-cov-wrapper $LLVM_VERSION"
+	exit 0
+fi
+
+
+if [ -n "$LLVM_VERSION" ]
+then
+	MAJOR=$(echo $LLVM_VERSION | cut -d'.' -f1)
+	MINOR=$(echo $LLVM_VERSION | cut -d'.' -f2)
+
+	if [ $MAJOR -eq 3 ] && [ $MINOR -le 4 ]
+	then
+		if [ -f "$1" ]
+		then
+			filename=$(basename "$1")
+			extension="${filename##*.}"
+
+			case "$extension" in
+				"gcno") exec $LLVM_COV_BIN --gcno="$1" ;;
+				"gcda") exec $LLVM_COV_BIN --gcda="$1" ;;
+			esac
+		fi
+	fi
+
+	if [ $MAJOR -eq 3 ] && [ $MINOR -le 5 ]
+	then
+		exec $LLVM_COV_BIN $@
+	fi
+fi
+
+exec $LLVM_COV_BIN gcov $@